you need to take the intake off to get to the back three plugs...
2002 galant , can't find the spark plugs
how to change number 6 spark plug on a 2006 mitsubishi galant
It is most likely your spark plugs and or wire set. All of this is easy to change. There is another forum that explains how to change your spark plugs for your Galant.
You must remove the entire intake manifold for you to have access on the three spark plugs located underneath it. it is advisable that a qualified Mitsubishi technician should do this.
remove intake manifoled to access back 3 plugs. time consuming but can be done
pcm or crank sencer
Most had a V-6 under the hod, which would mean 6 spark plugs.
When changing the spark plug gaps it is important to remember the gap size. The gap size for a 2003 Mitsubishi Galant 4 cyl spark plugs is 0.044 inches.
if its got a v-6 in it it has 6, if its a 4 cyl. it has 4
My 2002 Galant has not had spark plugs replaced for over 100k due to where they are. Three are underneath the intake manifold. Yes...intake has to be removed. Not difficult now that I know. Lots of bolts and hoses need to be removed to lift the manifold.
make sure the gapping on the plug is correct to what the vehicle needs
A tune up for a Mitsubishi Galant can mean several things. But the most common focus is replacing the air filter, fuel filter, spark plugs, wires and routine maintenance.